JPH0647706U - Dustproof band guide structure for rodless cylinder - Google Patents

Abstract

(57) [Abstract] [Purpose] A piston is provided slidably in the cylinder, an axial output groove is formed on the peripheral wall of the cylinder, and the output arm extending from the piston is projected outward from the output groove. In a rodless cylinder with a slide member that slides on the outer surface of the cylinder connected to the output arm, the center part of the rod passes through the slide member, both ends are fixed, and the output groove is covered, the dust band is the other part of the cylinder. The purpose is to easily attach and detach without disassembling. [Structure] A cover member rotatably provided with a guide roller for guiding a dustproof band therein is detachably provided on a slide member.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dustproof band guide structure for a rodless cylinder.

[0002]

[Prior art]

 As conventional rodless cylinders, there are those disclosed in Japanese Utility Model Laid-Open No. 1-118204 shown in FIG. 5 and those shown in FIG. In these, a piston 102 is slidably provided in a cylinder 101, an axial output groove 106 is engraved in an upper portion of a peripheral wall of the cylinder 101, and an output arm 107 extending from the piston 102 is inserted from the output groove 106 to the cylinder 101. A slide member 108 that slides on the outer surface of the cylinder 101 is connected to the output arm 107, the both ends are fixed through the slide member 108 at the center, and a dustproof band 126 that covers the output groove 106 is provided. ing.

In such a rodless cylinder, when the slide member 108 is moved on the outer surface of the cylinder 102 as the piston 102 slides, the dustproof band 126 bends while being pulled as the slide member 108 moves. The sliding member 108 can slide. The contact surface of the output arm 107 with the dustproof band 126 is formed into a smooth curved surface or the guide roller 122 is provided so that the deformation of the dustproof band 126 does not give an excessive bending force to the dustproof band 126.

[0004]

[Problems to be solved by the device]

 In the conventional rodless cylinder shown in FIGS. 5 and 6, it is difficult to perform the work because the dustproof band 126 is inserted while being bent after the guide surface or the guide roller 122 is attached to the slide member 108. It is difficult and almost impossible to insert the dustproof band 126 after attaching 108 to the output arm 107 and attaching to the cylinder 102.

[0005]

In view of the above circumstances, the present invention has been devised in view of the above circumstances by sliding a piston in a cylinder so that the dustproof band can be attached / removed without disassembling other parts of the cylinder. It is movably installed, and an axial output groove is engraved on the peripheral wall of the cylinder, the output arm extending from the piston is projected outside the cylinder from the output groove, and a slide member that slides on the outer surface of the cylinder is connected to the output arm. In a rodless cylinder with a dustproof band that covers the output groove by fixing both ends through the slide member in the center, a cover member that rotatably installs a guide roller that guides the dustproof band inside is used as the slide member. It is a dust-proof band guide structure for a rodless cylinder that is detachably attached to the.

[0006]

[Action]

 After fixing the dustproof band to the cylinder, the cover member with the guide roller inside is attached to the slide member, so it is easy to attach the dustproof band, and it is easy to remove the dustproof band after removing the cover member. is there.

[0007]

【Example】

 Hereinafter, the present invention will be described in detail with reference to specific embodiments shown in the accompanying drawings. First, a rodless cylinder is shown in FIGS. 1, 2 and 3. A piston 2 is slidably provided in a cylinder 1, a cylinder head 4 accommodating a pulley 3 is screwed to both ends of the piston 2 with a bolt 5, and an axial output groove 6 is formed on an upper portion of a peripheral wall of the cylinder 1. Then, the output arm 7 extending from the piston 2 is projected from the output groove 6 to the outside of the cylinder 1, and the output arm 7 is connected to the slide member 8 that slides on the outer surface of the cylinder 1.

The pulley 3 is rotatably provided on a pulley shaft 12 via a bearing 11. Both ends of the pulley shaft 12 are supported on both side walls 14 of a bracket 13 made of sheet metal, and both ends of the pulley shaft 12 are connected to a vertical wall 60. The adjusting bolt 18 protruding from the cylinder head 4 is inserted into a mounting piece 17 which is supported by the long hole 15 and which is erected from the base piece 16 of the bracket 13, and is screwed with a nut 19. Reference numeral 20 is a retaining ring for the pulley shaft 12.

The slide member 8 is slidably provided in an inverted V-shaped guide groove 21 formed on the upper surface of the cylinder 2. The slide member 8 has a guide roller 22 inside and an elastic slide at the end. The cover member 24 provided with the scraper 23 is fitted into the guide groove 9 formed on the inner surface of the upper portion of the slide member 8 and screwed with the screw 25. The dustproof band 26 covering the output groove 6 of the cylinder 2 is clamped at its end by a clamp plate 35 and a bent clamp plate 27, and screwed onto the upper surface of the cylinder 2 with a screw 28.

One end of the cable 29 is connected to the piston 2, the cable 29 is wound around the pulley 3, and the other end is connected to the output arm 7. The cover plate 31 covers the pulley 3 and is attached to the cylinder head 4 with screws 32. When the piston 2 slides, its driving force is transmitted to the cable 29, is transmitted to the slide member 8 via the output arm 7, and the slide member 8 slides on the outer surface of the cylinder 1. The slide member 8 is provided with a screw hole 30 for mounting a load.

The dustproof band 26 is guided by the guide roller 22 of the cover member 24 and the guide roller 33 attached to the slide member 8. Next, the guide structure of the dustproof band 26 of the present invention will be described. The dustproof band 26 covering the axial output groove 6 on the upper part of the peripheral wall of the cylinder 1 facilitates the deformation of the slide member 8 moving from the dustproof surface when the slide member 8 moves in the axial direction of the cylinder 1, and the cover provided with the guide roller 22. The member 24 is fitted into the internal groove section engraved on the upper inner surface of the slide member 8 and screwed to the slide member 8 with a screw 25.

As shown in FIG. 4, in the cover member 24, an insertion plate 47 of a size that covers the dustproof band 26 in the longitudinal direction is cantileveredly protruded from the upper part of the vertical mounting plate 46, and the insertion plate is inserted. Reinforcing ribs 48 are fixed between both sides of the lower surface of 47 and the inner surface of the mounting plate 46. Reinforcing ribs 48 are fixed to the both side bridges of the insertion plate 47 at positions where protruding sliding portions 49 are formed so as to be retained in the guide grooves 9 of the slide member 8.

A rotating shaft 52 is installed between the reinforcing ribs 48, and a guide roller 22 is rotatably provided. In order to attach the cover member 24 to the front and rear bridge surfaces 54, 55 of the slide member 8, through holes 50 through which the screws 25 are inserted are formed on both sides of the attachment plate 46. Further, a scraper holding groove 51 for providing the elastic scraper 23 is formed on the outer surface of the mounting plate 46, and is pressed by the holding plate 53 so that the screw 25 is passed through the through hole 50 and screwed to the slide member 8. .

The slide member 8 is fixed to the output arm 7 of the cylinder 1, the dustproof band 26 is passed through while being guided by the guide roller 33, the output groove 6 is covered, and both ends of the slide plate 8 and the clamp plate 34 are bent. It is clamped by 27 and fixed to the cylinder 1 by a screw 28. Subsequently, the cover member 24 provided with the guide roller 22 is inserted from the front and rear end surfaces 54 and 55 of the slide member 8 into the guide groove 9 of the slide member 49 by inserting the sliding portion 49 of the insertion plate 47 and the attachment plate 46 of the cover member 24 and the retainer. The elastic scraper 23 is sandwiched below the plate 53, and the screw 25 is passed through the through hole 50 and screwed to the slide member 8.

Then, as shown in FIG. 1, the dustproof band 26 comes into contact with the guide roller 33 installed on the slide member 8 and the guide roller 22 installed on the cover member 24 to make a smooth circle in the slide member 8. Pass in an arc.

[0016]

[Effect of device]

 According to the present invention, as described above, the piston is slidably provided in the cylinder, the output groove in the axial direction is engraved on the peripheral wall of the cylinder, and the output arm extending from the piston is provided outside the cylinder from the output groove. The rod arm is connected to a slide member that slides on the outer surface of the cylinder so that it protrudes and slides on the outer surface of the cylinder. The rod-less cylinder's dust-proof band guide structure is such that the guide member that rotates around the guide roller is detachably attached to the slide member, so the dust-proof band does not have to be disassembled in other parts of the cylinder. It can be easily attached and detached.

[Brief description of drawings]

FIG. 1 is a front view in which a half of a rodless cylinder is sectioned.

FIG. 2 is a plan view in which a part of FIG. 1 is sectioned.

FIG. 3 is a side view of FIG.

FIG. 4 is a plan view of the cover member, a cross-sectional view taken along line AA, a front view,
FIG. 5 is a rear view and an enlarged vertical cross-sectional view of a main part, and are five views.

FIG. 5 is a cross-sectional front view of a conventional rodless cylinder.

FIG. 6 is a front view in section of another conventional rodless cylinder.

[Explanation of symbols]

 1 ... Cylinder 2 ... Piston 6 ... Output groove 7 ... Output arm 8 ... Slide member 26 ... Dustproof band 22 ... Guide roller 24 ... Cover member

Claims (1)

[Scope of utility model registration request] 1. A piston is slidably provided in a cylinder, an axial output groove is formed on a peripheral wall of the cylinder, and an output arm extending from the piston is protruded from the output groove to the outside of the cylinder. In the rodless cylinder with a slide member that slides on the outer surface of the cylinder connected, the center part passing through the slide member, fixing both ends, and providing a dustproof band that covers the output groove, rotate the guide roller that guides the dustproof band inside. A dust-free band guide structure for rodless cylinders in which a freely provided cover member is detachably attached to a slide member.